Mea hao hao:

ʻO nā mea kila kila he ʻano mea, kokoke i ke aniani aniani, hoʻopā paʻakikī a me ke anu, no ka mea hoʻonaninani avant-garde ʻoi aku ka maikaʻi o ka corrosion, hoʻoheheʻe ʻia, hoʻohālikelike a paʻakikī a me nā hiʻohiʻona ʻē aʻe, hoʻohana ʻia i ka ʻoihana kaumaha. , ʻoihana māmā, ʻoihana waiwai hale a me nā mea hoʻonani hale a me nā ʻoihana ʻē aʻe.

Kuhiliʻoleʻakika kūpaʻa kila i oleloia e like me kuhiliʻole kila, ka mea, ua haku ia o kuhiliʻole kila a me kaʻakika kūpaʻa kila elua hapa, i ka pōkole, hiki ke pale aku i ka lewa corrosion o ke kila i kapaia kuhiliʻole kila, a hiki ke pale kemika medium corrosion o ke kila i kapaia waika pale kila.Generally ʻōlelo ʻia, ʻoi aku ka nui o ka chromium o Cr ma mua o 12% o ke kila i nā ʻano o ke kila kila.

Hoʻokaʻawale kila kila:

Nui nā ʻano o ka hoʻokaʻawale ʻana i ke kila kila, i waena o nā mea maʻamau e like me kēia.

ʻO ka hoʻokaʻawale ʻana o ka hana metallographic:

Hiki ke hoʻokaʻawale ʻia i ke kila kila austenitic, ferrite stainless steel, martensitic stainless steel, duplex stainless steel, precipitation hardening stainless steel.

Ka hoʻohui ʻia ʻana o kemika:

Hiki ke hoʻokaʻawale ʻia i ka chromium stainless steel (e like me ka ferrite series, martensite system) a me ka chromium nickel stainless steel (e like me austenite system, abnormal series, precipitation hardening series) ʻelua ʻōnaehana.

E like me ke ʻano o ka pale ʻana i ka corrosion:

Hiki ke hoʻokaʻawale ʻia i loko o ke koʻikoʻi koʻikoʻi kūpaʻa kūwaho kila, pitting corrosion kūpaʻa kuhiliʻole kila, intergranular corrosion kūpaʻa kuhiliʻole kila, etc.

Hoʻokaʻawale ʻia e nā hiʻohiʻona hana:

Hiki ke hoʻokaʻawale ʻia i loko o ka ʻoki manuahi ʻokiʻoki ʻana i ke kila kila, ke kila kila kila ʻole, ke kila kila haʻahaʻa haʻahaʻa, ke kila kila ikaika kiʻekiʻe.

Aia ma kahi kokoke i 100 mau ʻano kila kila i hoʻokomo ʻia i loko o nā kūlana like ʻole o ka honua, a me ka holomua o ka ʻepekema a me ka ʻenehana a me ka hoʻomohala ʻana i ka ʻoihana a me ka mahiʻai, ke piʻi nei hoʻi nā māka kila kila hou. , hiki ke helu 'ia kona chromium like [Cr] a me nickel equivalent [Ni] e like me kona haku mele 'ana, a me ka microstructure a me ka waiwai o ke kila hiki ke koho 'okoʻa ma ka hoʻohana 'ana i ka Schaeffler-Delong stainless steel microstructure pakuhi.

Hoʻokaʻawale matrix:

1, ferrite stainless steel.Chromium 12% ~ 30%. Kona corrosion kū'ē, toughness a weldability hoʻonui me ka hoʻonui o ka chromium maʻiʻo, a me kona chloride stress corrosion kū'ē i oi aku ma mua o 'ē aʻe ano o ke kila kila.

2. Austenitic stainless steel. Loaʻa iā ia ma mua o 18% chromium, e pili ana i ka 8% nickel a me kahi liʻiliʻi o ka molybdenum, titanium, nitrogen a me nā mea ʻē aʻe.

3. Austenite-ferrite duplex kuhiliʻole kila. He mau mea maikaʻi o austenite a me ferrite kuhiliʻole kila, a he superplasticity.

Martensitic kuhiliʻole kila.High ikaika, akā ilihune plasticity a weldability.

Pakaukau hoʻohālikelike helu kila kila kila a me ka papaʻaina

Kina	Iapana	USA	Kōlea Hema	Ka Hui ʻEulopa	Nuhōlani	Taiwan, Kina	Māmā (t/m3)
GB/T20878	JIS	ASTM	KS	BSEN	AS	CNS
12Cr13	SUS403	403	STS403	—	403	403	7.75
20Cr13	SUS420J1	420	STS420J1	1.4021	420	420J1	7.75
30Cr13	SUS420J2	—	STS420J2	1.4028	420J2	420J2	7.75
10Cr17	SUS430	430	STS430	1.4016	430	430	7.70
68Cr17	SUS440A	440A	STS440A	—	440A	440A	7.70
06Cr19Ni10	SUS304	304	STS304	1.4301	304	304	7.93
022Cr19Ni10	SUS304L	304L	STS304L	1.4306	304L	304L	7.93
06Cr17Ni12Mo2	SUS316	316	STS316	1.4401	316	316	7.98
022Cr17Ni12Mo2	SUS316L	316L	STS316L	1.4404	316L	316L	7.98
06Cr18Ni11Ti	SUS321	321	STS321	1.4541	321	321	7.93
06Cr18Ni11Nb	SUS347	347	STS347	1.455	347	347	7.98